I just came back from Hookfang's flight club... You need score 2300, total time max 25 seconds (70 seconds left).

Of course you must pick up everything and fly almost flawlessly... I always pick up left crate, if it isn't time bonus, I restart the level. For me, Hookfang turns too qiuckly, so I don't wear clothes with boosts in this course (because it will make him even more uncontrollable).